Convertible telegraph-key



(Nd Model.) 4 I J. A. MALON EY. CONVERTIBLE TELEGRAPH KEY. v No; 339,909. Patented Apr. 13', 1886.

WITNESSES: l/VVE/VTOI? 4, g Y y. 49

ATTORNEY) UNITED STATES PATENT OFFICE.

JAMES A. MALONEY, OF \VASHINGTON, DISTRICT OF COLUMBIA.

CONVERTIBLE TELEGRAPH-KEY.

SPECIFICATION forming part of Letters Patent No. 339,909, dated April 13,1886.

Application filed February 26, 1886. Serial No. 193,346. (No model.)

To all whont it may concern.-

Be it known that I, J AMES A. llIALONEY, a citizen of the United States,residing at \Vashington, in the District of Columbia, have invented certain new and useful Improvements in Convertible Telegraph-Keys; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to telegraph-keyaand has for its object an improvement on the instrument shown in Patent No. 336,653, bearing dateof February 23, 1886, granted to myself and A. G. Johnson.

The invention will hereinafterbe described, and particularly pointed out in the claims.

In the accompanying drawings, which form a part of this specification,Figure 1 represents a plan, and Fig. 2, a side elevation.

Reference being had to the drawings, A indicates the base upon which the several parts of the instrument are mounted.

B is the key or operating lever, madein two parts, a 1), arranged in the same lineal plane, and between which is interposed a spring, 0, the object of the latter being to render the lever flexible, and to impart to it a degree of resiliency capable of returning the lever to its normal position after each stroke produced by the hand of the operator.

Instead of the spring 0 being used, the parts a and b of the lever may be hinged together in such a manner as to render the lever flexible, and the free end of the lever returned by the cushioningspring m, arranged between it and the base. The section I) of the lever is provided with a journal, at, which is seated in a journal-bearing, 6, formed in the post 0, which is secured to the base. A screw, 71, provided with an enlarged head,i,which bears against the rear side of the post 0 is inserted into the end of the journal cl, and securely holds the parts together. A set-screw, k, secures the lever in either of the positions it is adapted to assume.

Instead of the frame or yoke with its adj usting-screws shown in the patent referred to, I substitute an arm, D, which is secured to or formed integral with the section a of the lever B, and revolves therewith. The arm D projects out from said section a of the lever B immediately over the section b, and is provided with a screw, Z, by which the movement of the lever B is regulated. By this device for controlling the space through which the lever B travels in signaling one screw does all of the work performed by three in the former instrument, and by simply adjusting the screw is the lever may be turned into any position desired.

E is an arc-shaped frame, race, or guide, and forms a bearing-surface for a cushioningspring, on, which is adjusted by a screw, w.

F is a frame, secured to the base A, and is provided with a vertical and two horizontal fixed anvils, 0 1), arranged opposite to each other.

To prevent false signaling by the back of the lever B striking either of the anvils 0 1) while the other is being used for signaling,the lever is insulated at g by inserting a piece of vulcanized rubber. with the usual button, G, and to the base are attached binding-posts H H and a switch-lever, I. passed through holes '2' and 5.

ly the application ofthe arm D to the lever B, and the fixed vertical and horizontal opposite contacts or anvils, the instrument can be instantly changed from one to any other position it is adapted to assume by the adj ustment of only one of the parts.

Having thus described my invention, what I claim is I 1. In a telegraph-key, a flexible lever made in two sections, arranged in the same lineal plane, in combination with aspace-regulating device secured to and revolving with said lever, substantially as described.

2. In a telegraph-key, a lever journaled in the plane of its longitudinal axis, in combination with an arm supporting an adjustingscrew secured to and revolving with said lever, substantially as described.

3. In a telegraph key, a lever having a journal formed on one end, in combination with a frame supporting three fixed anvils, two of which are right and left hand, to receive the impact of the lever in any of its working positions, substantially as described.

l. In a telegraph-key, the combination of a frame and opposite contact or anvils with a lever having a journal formed in one end, and

The lever is provided The base is secured to a table by screws insulated on the side opposite to its contactpoint, substantially as and for the purpose set forth.

5. In a telegraph key,v a lever having a 5 journal formed on one end,in combination with a space-regulating device, and a frame supporting three contacts or anvils, two of which are right and left hand, and a screw for locking the lever in any of its working positions, 10 substantially as described.

6. In a telegraphkey, a flexible lever having a journal formed on one end, in combination with a space-regulating device supported by the lever, a tension-spring, and fixed opposite contacts or anvils, substantially as described.

In testimony whereof I afiix my signature in presence of two Witnesses.

JAMES A. MALONEY.

Witnesses:

S. A. TERRY, WM. E. DYRE.

It is hereby certified that in Letters Patent N 0. 339,909, granted April 13, 1886, upon the application of James A. Maloney, of Washington, District of Columbia, for an improvement in Convertible Telegraph-Keys, an error appears in the printed specification requiring correction, as follows: In line 104, page 1, the Word in should be stricken out and the word on inserted instead; and that the said Letters Patent should he read With this correction therein that the same may contorin to the record of the ease in the Patent Office.

Signed, conntersigned, and sealed this 20th day of April, A. D. 1886.

H. L. MULDROWV, Acting Secretary of the Interior.

[SEAL] Gonntersi gned:

M. V. MONTGOMERY,

Commissioner 0 Patents. 

